If an electric lock is connected to the system(outdoor unit), it can be unlocked by the unlock button on the monitor from inside, or RFID cards and fingerprints on the outdoor unit from the outdoor. No more keys.
eBay
Support TF card expansion, press the doorbell can automatically save the screen, video. Doorbell size: about 10.5 4 2cm. Doorbell weight: about 70g. 1x Doorbell. 1x Doorbell film. Visual two-way intercom function.
eBay
No WIFI visible doorbell, more secure information. First, install the doorbell at the entrance that is convenient for reminders. You can choose to fix it with a base or stick it with film, or use it together.
eBay
Doorbell size: 8.3 5.2 2.5cm. Intercom: Half-duplex intercom. Video Intercom. The doorbell supports 2 types of installation, 3M adhesive fixing and screw fixing, installed on the door or smooth wall; the doorbell can be removed for charging when it is low battery.
eBay
Enjoy the convenience of a video doorbell that is easy use and user-friendly. Night Work: doorbell 285-315MA. 1 x Doorbell. Indoor: 40 m/131 ft. Video Resolution: 480 320. 1 x Double-sided Tape. Video Storage: SD card supports up to 256GB (not included).
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No WIFI visible doorbell, more secure information. Video two-way intercom. First, install the doorbell at the entrance that is convenient for reminders. You can choose to fix it with a base or stick it with film, or use it together.
eBay
No WIFI visual doorbell, more secure information;. Doorbell ultra-low power consumption, long standby;. Doorbell 1. Video two-way intercom;. Intercom type: color visual. Visual intercom;. Wireless installation, one key pairing, more convenient installation;.
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100% wire-free, easy to mounts in any spots you like. Smart Ring Video Phone Doorbell 1080p HD Advanced Motion Detection Waterproof. ModelWiFi Smart Doorbell. Type:Smart DoorBell. IP65 Waterproof Doorbell.
eBay